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For Insects, Spiders & Their Kin
For the United States & Canada

Species Jassa marmorata

Jassa marmorata Jassa marmorata Jassa marmorata Jassa marmorata Jassa marmorata Jassa marmorata IMG_1612 - Jassa marmorata IMG_1617 - Jassa marmorata
Classification
Kingdom Animalia (Animals)
Phylum Arthropoda (Arthropods)
Subphylum Crustacea (Crustaceans)
Class Malacostraca (Malacostracans)
Superorder Peracarida (Peracarida (Amphipods and Isopods))
Order Amphipoda (Amphipods)
Suborder Senticaudata
Family Ischyroceridae
Genus Jassa
Species marmorata (Jassa marmorata)
Explanation of Names
Jassa marmorata Holmes 1905
Identification
Patterning generally distinctive; for more solidly colored individuals, the following characters separate from Ischyrocerus anguipes:
Propodus of second chela is much larger than that of the first chela in both sexes (in I. anguipes, only the male has such an enlarged propodus)
Hind margin of propodus of second chela with prominent tooth (absent in I. anguipes)
Second coxae dissimilar from third coxae (very similar in I. anguipes)(1)
Internet References
Works Cited
1.The Arthrostraca of Connecticut
Kunkel B.W. 1918. Connecticut State Geological and Natural History Survey.